Formation of Volcanoes-
1.Magma rises up through cracks or weaknesses in the earths crust
2.Pressure builds up inside the earth
3.When this pressure is released, e.g as a result of plate movement, magma explodes to the surface causing a volcanic eruption.
4.The lava from the eruption cools to form new crust
5.Over time, after several eruptions, the rock builds up and a volcano forms.
Short term responses-
-Evacuation to the north of the island
-Abandonment of the capital city , Plymouth
-The british government gave money for compensation and redevelopment
Long term responses-
-Exclusion zone was set up in the volcanic region
-A volcanic observatory was built to monitor the volcano
-New roads and airports were built
-2/3 of the island was covered by ash
-50% of the population were evacuated to the north of the island
-19 people died
-The farmland was destroyed
-Many schools and hospitals were destroyed
-Fires started as buildings and gas pipes were set alight
-Towns and villages were uninhabitable
Volcanoes at constructive plate boundaries
When the two plates move apart the magma is forced upwards into the gap and eventually a new crust is formed to form a volcano.
Earthquakes in LEDCS
- LEDCS may not have the resources or technology to predict, protect and respond to an earthquake.
- Communication systems may be undeveloped, so the population may not be well educated about to do in the event of an earthquake.
- Construction standards tend to be poor in LEDCS. Homes and other building may not be build to withstand earthquakes so are more likely to be damaged.
- Evacuation plans may be hard to put into place due to the limited resources and funds
- There may not be enough money in the country to re-build or protect homes and buildings after the earthquakes, leaving many people homeless or living in tempoary emergency housing.